William b



(No Model.)

W. B. PENN.

JOINERS PLANE.

No. 287,371. Patented Oct. 23, 1883.

N. PErERs. Phnlmlimogmphor. Washinglun, D c,

' cutter with relation, to the thickness of the NITED STATES PATENT OF ICE.

\VILLIAM B. FENN, OF MERIDEN, CONNECTICUT, ASSIGNOR TO FOSTER MERRIAM & CO., CF PLACE.

JOINERS PLANE.

SPECIFICATION forming part of Letters Patent No. 287,371, dated October 23, 1883. Application filed June 30, 1883. (No model.)

To all whom it may concern.-

Be it known that I, WILLIA B. FENN, of Meriden, in the county of New Haven and State of Connecticut, have invented anew Improvement in Joiners Planes; and I do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in-

Figure 1, a sectional sideyiew; Fig. 2, a top view, with the plane-iron and clamp removed; Fig. 3, a rear view, the bed removed, showing the inclined guiding-sides and screw. Fig. 4, a perspective view of the bed removed, looking toward the under side; Fig. 5, a longitudinal section of the clamp through the T-shaped slot; Fig. 6, an under side view of the clamp; Fig. 7, a transverse section of the clamp on line or x of Fig. 5; Fig. 8, atransverse section of the bed, showing the T-shaped ranged. This nut is free for rotation, but

stud.

This invention relates to an improvement in that class of joiners or bench planes in which mechanism is employed to adjust the shaving to be out. In the more general construction of this class of planes the bed is 'fit-,

- A represents the stock, which is of substan tially the usual form; 13, the bed upon which the planeiron or cutter C is supported; D, the

clamp by which the iron is secured upon the inclined plane.

bed. E is the rest or support for the lower part of the plane-iron, and which terminates at the throat a.

The surface of the bed and the surface of the rest E must be in substantially the same In the rear end of therest E, I introduce studs F F, projecting therefrom,

and upwardly inclined in a plane parallel with the plane of the bed and rest. These studs are best made from round rods cut to the required length, and driven into corresponding holes in the rest.

The bed Bis constructed with d ownwardlyprojeeting ears G, through which holes I) are made corresponding to the studs F F, and so that the bed set upon the studs F will move freely thereon as guides, and the bed be retained in its proper relative position to the rest. The employment of these studs as guides is very much cheaper than the planed seat hitherto generally employed, as the holes for the studs as well as the corresponding holes in the bed are readily drilled bya pair of drills arranged for the purpose, so that the relative position of the two parts is assured. i

To adjust the bed, a third stud, H, is arranged in the rest between the studs F F. This stud is screw-threaded, and in a lug, I, which extends down from the bed, a nut, L, is arprevented from longitudinal movement (here represented as so prevented) by a screw, (2, through the lug into a corresponding annular groove in the body of the nut. The nut is fitted at its outer end with a head, M, by which it may be conveniently turned. The nut is internally threaded, corresponding to the stud H, and 'so that by turning the nut the bed will be moved accordingly.

Instead of two studs a single stud may be employed and accomplish a good result. I do not limit this part of my invention, therefore, to the employment of the two studs F F.

To engage the clamp with the bed, I construct the bed with an upwardly-projecting T- shaped stud, N, which will pass through the central slot in the plane-iron, so that the iron may be placed upon the bed and rest. The clamp D is constructed witha longitudinal slot, P, T- shaped in transverse section, as seen in Fig. 7. This slot is inclined fronrthe lower end backward and upward from the plane of the under side of the plate, the opening of the slot being upon the under side.

The head of the stud N enters the lower end, B, of the slot, and then, as the clamp is forced downward, the inclined T part of the slot engages the shoulder of the stud N, as seen in Figs. 5 and 7, the incline acting as a wedge to draw the clamp down upon the plane-iron, and thereby serve to clamp the iron to the bed, and so that a quite firm engagement may be made by simply thus forcing the clamp downward; but to make a firm engagement a set-screw, S, through the clamp is provided, to bear upon the iron above the point where the stud N engages, and so that the stud forms a fulcrum upon which the clamp will act as a lever, its" forward or lower end bearing upon the iron below the stud and the screw above.

Instead of making the inclined slot in the "clamp and fixing the stud to the bed, this order may be reversed, and the inclined slot made in the bed and the stud fixed to the clamp. In such construction, it will be understood the incline will be revcrsedvthat is, so as to draw the clamp toward the bed by the downward movement of the clamp.

Considerable difficulty is experienced in the by the introduction of a strip of rubber across the lower end of the clamp, as seen in Fig. 1; but it may be applied at other positions, and

the bed, it only being essential to this part of my invention that there shall be a non-metallic bearing-surface for the plane-iron.

I claim I 1. Inaplane substantially such as described, the combination of one or more inclined guiding-studs, F, fixed in the stock, the bed B, constructed to ride upon said inclined stud, mechanism, substantially such as described, to hold the plane-iron upon the bed, an inclined adjusting-screw and nut whereby said bed and the iron which it carries are made adjustable upon said stud, substantially as dcscribed.

2. In aplane substantially such as described, the combination of one or more inclined guiding-studs, F, the correspondingly-inclined screw-stud H, the bed B, constructed to ride 60 upon said inclined stud, and the nut L, arranged in said bed, fixed as to longitudinal movement but free for rotation, substantially as described.

WILLIAM B. FENN.

Vitnesses: I

Jos. O. EARLE,

J. H. SHUMWAY. 

